#define _CRT_SECURE_NO_WARNINGS 1
#include<windows.h>
int main()
{
	Beep(440, 500);//A
	Beep(494, 500);//B
	Beep(523, 500);//C
	Beep(587, 500);//D
	Beep(659, 500);//E
	Beep(698, 500);//F
	Beep(784, 500);//G
	return 0;
}